Improvement in counting-registers



R.. P. HiNDS.

Counting-Registers.

N0, 135,336, Patentedjan.28.,1v873.

74925709 Jo" e J.

UNITED STaTEs PATENT QEEICE.

RUSSEL l. HINDS, 0F CHICAGO, ILLINOIS.

IMPROVEMENT IN COUQTINGREGISTERS.

Specification forming part of Letters Patent No. B, dated January 2S,1873.

To all whom 'it may concern:

Be it known that l, Russian P. HrNns, of Chica-go, in the county of @ookand State of Illinois, have invented a new and Improved MechanicalMovement 5 and l doyhereby declare the following to be a full, clear,and exact description of the same, reference being had to theaccompanying drawing forming part of this speciiication, in which-Figure l is a top-plan view of my improved movement arranged in arectangular ase, the top plate of which is removed. Fig. 2 is an edgeview of the same. Fig. 3 is a top-plan view of a modification, showingthe movement arranged in a circular case. Fig. fi is a bottorn view, andFig. 5 an edge view, ofthe same modification.

Similar letters of reference in the accompanying drawing denote the sameparts.

My invention has for its object to provide improved means fortransmitting rotary inotion to be used upon meters of various kinds,calculating or counting machines, calendars, clocks, watches, Ssc., andto this end the invention consists in the construction and com binationof parts as l will now proceed to describe. i@

A represents a series of shafts havin g their hearings in two rectangulr, circular, or other suitably-formed plates, B, and either arranged inline, as shown in Figs. l and 0, or at an angle with each other, as inFigs. 3 and e. C C C are what l term press-wheels, mounted upon theshafts so as to turn with or upon them; and D D D are recessed wheels,also mounted upon the shafts. The presswheels are constructed withsmooth peripherics, excepting at one point, where they are notched orrecessed, as shown at c, and the larger wheels D are formed with concaverecesses f in their pcripheries, the radius of each concavity beingequal, or nearly so, to the radius of each press-wheel. The wheels areso arranged that the press-wheel upon one shaft shall be in line withand bear against the concave surfaces of the wheel D upon the adjoiningshaft, and so on throughout the entire train. g g are a number of pinsprojecting from the side of each wheel D at regular distances apart, andwithin the path of an arm or spur, h, projecting from the side of eachpresswheel, as shown. The contact of the press-wheels with the concavesurfaces ofthe wheels D hold the latter from turning until the rotationof the former carries the arm hv against one of the pins g. As the armstrikes,

a pin the points i of the wheel D between the concaves enter the notch cin the press-wheel and permit the wheel D to rotate the distance of oneconcave. rlhus one revolution of a )ross` wheel moves the adjoiningwheel D one conA cave, the concaves and pins being equal in number. Byaixing dials J to the outside ol" either plate A of the case andattaching index-fingers to the shafts, the number of revolutions ot' thewheels D is easily recorded. It is evident that as many revolutions ofthe press wheels are necessary to rotate each wheel D once as there arepins and concave-s upon the latter, and that a system of wheels may bearranged to record tens, hundreds, thousands, 83e., as in an ordinarygas or water meter. instead of employing lateral pins g to en the armsh, separa-te toothed wheels K may be mounted upon the shafts C besidethe wheels D, as shown in Figs. l and 2.

l am aware that in a train of gear-wheels for transmitting rotarymotion. the drivingwheels have been formed with a peripheral tooth toengage with peripheral teeth in the adjoining wheels. This arrangement,however, contains defects which my invention is designed to overcome. lnall wheels of this form, as well as gear-wheels, the point of contactbetween the teeth is always removed some distance from a straight linedrawn between the centers of the wheels. For this reason the teeth aremade to mesh loosely in order to prevent the wheels from binding andcramping. The play of the teeth, however, causes a great amount offriction, and a con` sequent increase in the power required to drive thetrain. By the employment of the press and concave wheels and thearrangement of the tripping arms and pins the tripping-arm comes incontact with the pins directly upon a straight line drawn between thecenters of the two wheels, The pinis therefore merely touched and pushedout of the way by the arm in order to turn the concave wheel. The pointof con tact between the two being very small, the friction is reduced tothe minimum, and less power is required to drive the mechanism. Neitheris there any friction to overcome between the press-wheel and concaves eat the moment of tripping, because these two surfaces are then out ofcontact. It is not absolutely necessary that the press-wheel shouldtouch the whole of a concave surface, e, when the tripping-arm is out ofcontact with the pins, as it may, with equal effect, bear at two pointsonly-11'.. e., near the points t'.

L is a ratchet-wheel mounted upon the rst ot' the series of shafts A. Acircular movement is imparted to it to drive the rst press- Wheel bymeans of the vibratin g lever M, carrying two pawls, N, one of whichengages the ratchet-teeth in rising and the other in falling. 0 is aspring attached to the fulcrum of the lever and arranged to bear againstone of the pawls to hold it engaged with the ratchetwheel. lThe levermay be operated by any suitable means.

Fig.v5 shows the application of a bell, P, to the case of the movement,which maybe struck by any suitable mechanism operated from any oftheshai'ts C, or from the wheels of the train, or from the spring-leverand pawls M N.

Having thus described my invention, what I claim is- As a means fortransmitting rotary motion from a smooth Wheel to a wheel having aseries of peripheral concaves, the arm h upon the former arranged tostrike lateral pins upon the latter at a point directly in line with thecenter of the two wheels and midway between the points 'i of the concavewheel, substantially as described, for the purpose specified.

RUSSEL P. HINDS.

Witnesses:

NATHAN K. ELLswoRTH, E. A. ELLswoRTH.

